Circular saw



FIG. 1 is a top view of the circular saw;

FIG. 2 is a front view of the circular saw;

FIG. 3 is a rear view of the circular saw;

FIG. 4 is a bottom view of the circular saw;

FIG. 5 is a right side view of the circular saw;

FIG. 6 is a left side view of the circular saw;

FIG. 7 is a front right perspective view of the circular saw;

FIG. 8 is a front left perspective view of the circular saw;

FIG. 9 is rear right perspective view of the circular saw; and,

FIG. 10 is a rear left perspective view of the circular saw.

CLAIM The ornamental design for a circular saw, as shown.